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ICD10BillableValid for clinical use

ICD-10 Code Q27.8: Other specified congenital malformations of peripheral vascular system

Q27.8 is a billable ICD-10 diagnosis code used to classify Other specified congenital malformations of peripheral vascular system in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0).

When is it used?

  • May be used when a clinician documents other specified congenital malformations of peripheral vascular system in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
17Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)
block
Q20-Q28Congenital malformations of the circulatory system
category
Q27Other congenital malformations of peripheral vascular system
currentQ27

Official coding notes

Inclusion terms
  • Absence of peripheral vascular system
  • Atresia of peripheral vascular system
  • Congenital aneurysm (peripheral)
  • Congenital stricture, artery
  • Congenital varix
Excludes1 (do not code together)
  • arteriovenous malformation (Q27.3-)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Cardiologist

Coverage-related procedures and services

CPT 93970high
DUPLEX SCAN OF EXTREMITY VEINS INCLUDING RESPONSES TO COMPRESSION AND OTHER MANEUVERS; COMPLETE BILATERAL STUDY
Source: CMS coverage guidance
CPT 93971high
DUPLEX SCAN OF EXTREMITY VEINS INCLUDING RESPONSES TO COMPRESSION AND OTHER MANEUVERS; UNILATERAL OR LIMITED STUDY
Source: CMS coverage guidance
CPT 36482high
ENDOVENOUS ABLATION THERAPY OF INCOMPETENT VEIN, EXTREMITY, BY TRANSCATHETER DELIVERY OF A CHEMICAL ADHESIVE (EG, CYANOACRYLATE) REMOTE FROM THE ACCESS SITE, INCLUSIVE OF ALL IMAGING GUIDANCE AND MONITORING, PERCUTANEOUS; FIRST VEIN TREATED
Source: CMS coverage guidance
CPT 36483high
ENDOVENOUS ABLATION THERAPY OF INCOMPETENT VEIN, EXTREMITY, BY TRANSCATHETER DELIVERY OF A CHEMICAL ADHESIVE (EG, CYANOACRYLATE) REMOTE FROM THE ACCESS SITE, INCLUSIVE OF ALL IMAGING GUIDANCE AND MONITORING, PERCUTANEOUS; SUBSEQUENT VEIN(S) TREATED IN A SINGLE EXTREMITY, EACH THROUGH SEPARATE ACCESS SITES (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 36478high
ENDOVENOUS ABLATION THERAPY OF INCOMPETENT VEIN, EXTREMITY, INCLUSIVE OF ALL IMAGING GUIDANCE AND MONITORING, PERCUTANEOUS, LASER; FIRST VEIN TREATED
Source: CMS coverage guidance
CPT 36479high
ENDOVENOUS ABLATION THERAPY OF INCOMPETENT VEIN, EXTREMITY, INCLUSIVE OF ALL IMAGING GUIDANCE AND MONITORING, PERCUTANEOUS, LASER; SUBSEQUENT VEIN(S) TREATED IN A SINGLE EXTREMITY, EACH THROUGH SEPARATE ACCESS SITES (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
Q27.8

Common synonyms

Other specified congenital malformations of peripheral vascular system

Frequently asked questions

Code details

CodeQ27.8
SystemICD10
Display nameOther specified congenital malformations of peripheral vascular system
ChapterCongenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)
BlockCongenital malformations of the circulatory system

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Aberrant(congenital)Aberrant(congenital)Aberrant(congenital)Aberrant(congenital)Aberrant(congenital)Aberrant(congenital)Aberrant(congenital)Aberrant(congenital)Aberrant(congenital)Aberrant(congenital)Aberrant(congenital)Aberrant(congenital)

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.